[lonelyasacloud]

If based on a single cooperative user, writing a blog/photo sharing Facebook/Twitter lite site is relatively straightforward. Equally, spinning up its backend (pico-)services with Kubernetes and Docker is also far easier than it used to be, albeit missing the App Store install experience just yet.

No, what's missing is that outside of mining their data to sell ads, or possibly having it as a nascent feature of expensive walled garden phones, no one has figured out how to get consumers to pay for those services as a standalone offering - yet.